Plane



Mar. 13, 1923. 1,448,177

J. R. ANDERSON PLANE Filed Jan. 20,' 1922 wine/@2130)":

Patented Mar. 13, 1923.

"rear JOHN R. ANDERSON, OF IVZOLINE, ILLINOIS.

Y I :PLANE.

Application filed January 20, 1822. Serial No. 530,517.

This invention relates to planes used in joinery and has for its principal object to provide a simple structure including a mini.-.

mum number of parts, all of which are adapted for quantity production.

Another object of the invention is to provide a simple plane stock that can be advantageously made of pressed metal.

Another object of the invention is to enable the blade to be easily and quickly se- 1 cured in place in a manner permitting ready adjustment.

Further objects of the invention will become apparent as the description is read in connection with the accompanying drawing showing a selected embodiment of the invention, and in which Fig. 1 is a longitudinal central sectional view; and

Figs. 2 and 3 are transverse sectional views on the line 22 and 3-3 respectively of'Fig. 1.

The stock 10 of the plane is preferably made of sheet metal in the form of a channel having a smooth flat face 11 on the bottom of the web portion 12 and the curved upper edges 13 on the side flanges 14. The flanges should be higher at the front end of the stock as indicated in order to protect the fingers from the shavings that might otherwise veer off to the side. The rear portions of the flanges are preferably low, substantially as indicated, in order to let the palm of the hand come against the smooth curved surface of the locking lever 15 during the movement of the plane in use.

The web 12 is provided with a transverse slot 16 of sufficient width to leave a proper aperture for shavings in front of the bit 28. To the rear of the slot and some distance above the web depending on the inclination of the bit, I provide an abutment 17 here shown as a rivet passing through the flanges 14: and having its heads 15 countersunk therein.

The bit is preferably held in place against the rear wall of the slot 16 and the abutment 17 by a lever 15 which is fulcrumed so as to slightly pass center in moving from locked to unlocked position; As shown, the

lever has the short arin-l8lextending"forwardly and upwardly from. a notch..1-9, for

receiving the fulcrum20, and a curved long arm 21 bent as indicated at 22 and terminating in a strut 28 having aflat end 24- to rest against the upper surface of the web .12. The fulcrum is here shown as formed by a plate 25 secured to-the web by a rivety26 and having one end bent upwardly at 20 and the other end beveled to form-an inclined support 27 for thelower end of the bit 28.:

The lever 15 is substantially channel shape in cross section and at the bend takesa somewhat spherical formisof as ,to' present a smooth surface to the palm-of the hand.

When it is desired to'insert theblade the lever 15 is raised to the dotted line position shown in Fig. 1, the blade inserted from beneath to approximately the dotted line position shown in lfiig. 1, the stock and blade then rested on a flat surface and the lever movedv to the solid line position shown in Fig. 1. This last movement of the lever bends the bit slightly as indicated'a'nd the short arm 18 passes slightly above the point on the'blade nearest to the upper end of the fulcrum 20, or in other words, passes center i so that the force of the bladefin trying to straighten tends to rotate the lever clockwise, which is prevented by the end 241 of the long arm of the lever coming in contact with the web 1.2 as shown. To 'remove the bit, the lever is thrown to the dotted line u position shown in Fig. 1, and the bit drawn out through the slot 16. To adjust the bit for a deeper cut it may be tapped on the upper end with. a mallet or the like and to adjust it to make the edge parallel with the face 11 it may be tapped on the. proper side edge in a well-known manner.

This construction results in an extremely 7 strong tool which can be made in quantity at a ve'ry low cost. produced from pressed metal with the face 11 practically plane. The abutment 17 and fulcrum 20 can both be assembled by chine operation. The bit'2'8 can be made,

as usual, from bar stock, and the lever15 can be made by either casting, drop-forging,

The stock may be easily or pressing. The threeiparts constituting the tool can be shipped in knocked down condition and assembled with the use of unskilled labor. 1

I am aware that changes may be made in the form, construction and arrangement of the invention, as set forth in the selected embodiment herein, Without departing from the scope or sacrificing any of its material advantages, and I therefore reserve the right to make all such changes as fairly fall Within the scope of the following claims: I

I claim:

1. In a plane, the combination of a stock having a slot for a bit, an abutment on said stock above and to the rear of said slot, a bit extending through said slot and beneath said abutment, and a lever fulcrumed on said stock to the rear of said abutment, and

bearing against said bit to bind the latter against said abutment and said stock.

2. In a plane, a stock having a slot therein for a hit, an abutment on said stock above and to the rear of said slot, a bit extending through saidslot and beneath said abutment, a fulcrum on said stock to the rear of said abutment, and a lever engaged with said fulcrum and engaging said bit with one end andsaid stock with the other. i

3. In a plane, the combination of a channel-shaped stock including a web, upwardly extending flanges spaced apart, and a transverse abutment between said flanges, said Web having a transverse slot for a bit, a bit extending beneath said abutment and through said slot, and a lever fulcrumed behind said bit and adapted to bind said bit against said abutment and said web.

4. In a plane, a channel shaped stock comprising a web having a plane face, flanges extending upwardly from said web, and an abutment connecting said flanges above said web, a fulcrum secured to said Web, a bit passing through said web and beneath said abutment, and a bent lever on said fulcrum and having a short arm engaging said bit and a long arm engaging said stock.

5. In a plane, a stock having a slot therein for a bit, an abutment on said stock, a fulcrum on said stock, a bit passing through said slot and beneath said abutment, a lever pivoted on said fulcrum having a short arm for engagement with said bit and a long arm for engagement with said stock, said long arm being bent to form a curved seat to! the hand.

' JOHN R. ANDERSON. 

